lcm/lcm/nf/vnf_cancel/term_vnf.py

   1 # Copyright 2017 ZTE Corporation.
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #         http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 import json
  16 import logging
  17 import traceback
  18 from threading import Thread
  19
  20 from lcm.nf.const import VNF_STATUS
  21 from lcm.pub.database.models import NfInstModel, VmInstModel, NetworkInstModel, StorageInstModel, \
  22     FlavourInstModel, PortInstModel, SubNetworkInstModel, VNFCInstModel, NfvoRegInfoModel
  23 from lcm.pub.exceptions import NFLCMException
  24 from lcm.pub.msapi.gvnfmdriver import apply_grant_to_nfvo, notify_lcm_to_nfvo
  25 from lcm.pub.utils.jobutil import JobUtil
  26 from lcm.pub.utils.timeutil import now_time
  27 from lcm.pub.utils.values import ignore_case_get
  28 from lcm.pub.vimapi import adaptor
  29
  30 logger = logging.getLogger(__name__)
  31
  32
  33 class TermVnf(Thread):
  34     def __init__(self, data, nf_inst_id, job_id):
  35         super(TermVnf, self).__init__()
  36         self.data = data
  37         self.nf_inst_id = nf_inst_id
  38         self.job_id = job_id
  39         self.terminationType = ignore_case_get(self.data, "terminationType")
  40         self.gracefulTerminationTimeout = ignore_case_get(self.data, "gracefulTerminationTimeout")
  41         self.apply_result = None
  42         self.notify_data = None
  43         self.inst_resource = {
  44             'volumn': [],
  45             'network': [],
  46             'subnet': [],
  47             'port': [],
  48             'flavor': [],
  49             'vm': [],
  50         }
  51
  52     def run(self):
  53         try:
  54             if self.term_pre():
  55                 self.grant_resource()
  56                 self.query_inst_resource()
  57                 self.query_notify_data()
  58                 self.delete_resource()
  59                 self.lcm_notify()
  60             JobUtil.add_job_status(self.job_id, 100, "Terminate Vnf success.")
  61         except NFLCMException as e:
  62             self.vnf_term_failed_handle(e.message)
  63         except Exception as e:
  64             logger.error(e.message)
  65             self.vnf_term_failed_handle(traceback.format_exc())
  66
  67     def term_pre(self):
  68         vnf_insts = NfInstModel.objects.filter(nfinstid=self.nf_inst_id)
  69         if not vnf_insts.exists():
  70             logger.warn('VnfInst(%s) does not exist' % self.nf_inst_id)
  71             return False
  72             # raise NFLCMException('VnfInst(%s) does not exist' % self.nf_inst_id)
  73         # sel_vnf = vnf_insts[0]
  74         # if sel_vnf.status != 'VNF_INSTANTIATED':
  75         #    raise NFLCMException("Don't allow to terminate vnf(status:[%s])" % sel_vnf.status)
  76         if self.terminationType == 'GRACEFUL' and not self.gracefulTerminationTimeout:
  77             logger.warn("Set Graceful default termination timeout = 60")
  78             self.gracefulTerminationTimeout = 60
  79             # raise NFLCMException("Graceful termination must set timeout")
  80
  81         NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status=VNF_STATUS.TERMINATING)
  82         JobUtil.add_job_status(self.job_id, 10, 'Nf terminating pre-check finish')
  83         logger.info("Nf terminating pre-check finish")
  84         return True
  85
  86     def grant_resource(self):
  87         logger.info("nf_cancel_task grant_resource begin")
  88         content_args = {
  89             'vnfInstanceId': self.nf_inst_id,
  90             'vnfDescriptorId': '',
  91             'lifecycleOperation': 'Terminate',
  92             'jobId': self.job_id,
  93             'addResource': [],
  94             'removeResource': [],
  95             'placementConstraint': [],
  96             'additionalParam': {}
  97         }
  98
  99         vdus = VmInstModel.objects.filter(instid=self.nf_inst_id, is_predefined=1)
 100         res_index = 1
 101         for vdu in vdus:
 102             res_def = {'type': 'VDU',
 103                        'resDefId': str(res_index),
 104                        'resDesId': vdu.resouceid}
 105             content_args['removeResource'].append(res_def)
 106             res_index += 1
 107
 108         vnfmInfo = NfvoRegInfoModel.objects.filter(nfvoid=self.nf_inst_id)
 109         if len(vnfmInfo) == 0:
 110             raise NFLCMException('nf_inst_id(%s) does not exist in NfvoRegInfoModel' % self.nf_inst_id)
 111         content_args['additionalParam']['vnfmid'] = vnfmInfo[0].vnfminstid
 112         content_args['additionalParam']['vimid'] = vnfmInfo[0].apiurl
 113         logger.info('content_args=%s' % content_args)
 114         self.apply_result = apply_grant_to_nfvo(json.dumps(content_args))
 115         logger.info("nf_cancel_task grant_resource end")
 116         JobUtil.add_job_status(self.job_id, 20, 'Nf terminating grant_resource finish')
 117
 118     def query_inst_resource(self):
 119         logger.info('[query_resource begin]:inst_id=%s' % self.nf_inst_id)
 120         vol_list = StorageInstModel.objects.filter(instid=self.nf_inst_id)
 121         for vol in vol_list:
 122             if not vol.resouceid:
 123                 continue
 124             self.inst_resource['volumn'].append(self.get_resource(vol))
 125         logger.info('[query_volumn_resource]:ret_volumns=%s' % self.inst_resource['volumn'])
 126
 127         network_list = NetworkInstModel.objects.filter(instid=self.nf_inst_id)
 128         for network in network_list:
 129             if not network.resouceid:
 130                 continue
 131             self.inst_resource['network'].append(self.get_resource(network))
 132         logger.info('[query_network_resource]:ret_networks=%s' % self.inst_resource['network'])
 133
 134         subnetwork_list = SubNetworkInstModel.objects.filter(instid=self.nf_inst_id)
 135         for subnetwork in subnetwork_list:
 136             if not subnetwork.resouceid:
 137                 continue
 138             self.inst_resource['subnet'].append(self.get_resource(subnetwork))
 139         logger.info('[query_subnetwork_resource]:ret_networks=%s' % self.inst_resource['subnet'])
 140
 141         port_list = PortInstModel.objects.filter(instid=self.nf_inst_id)
 142         for port in port_list:
 143             if not port.resouceid:
 144                 continue
 145             self.inst_resource['port'].append(self.get_resource(port))
 146         logger.info('[query_port_resource]:ret_networks=%s' % self.inst_resource['port'])
 147
 148         flavor_list = FlavourInstModel.objects.filter(instid=self.nf_inst_id)
 149         for flavor in flavor_list:
 150             if not flavor.resouceid:
 151                 continue
 152             self.inst_resource['flavor'].append(self.get_resource(flavor))
 153         logger.info('[query_flavor_resource]:ret_networks=%s' % self.inst_resource['flavor'])
 154
 155         vm_list = VmInstModel.objects.filter(instid=self.nf_inst_id)
 156         for vm in vm_list:
 157             if not vm.resouceid:
 158                 continue
 159             self.inst_resource['vm'].append(self.get_resource(vm))
 160         logger.info('[query_vm_resource]:ret_vms=%s' % self.inst_resource['vm'])
 161
 162     def get_resource(self, resource):
 163         return {
 164             "vim_id": resource.vimid,
 165             "tenant_id": resource.tenant,
 166             "res_id": resource.resouceid,
 167             "is_predefined": resource.is_predefined
 168         }
 169
 170     def query_notify_data(self):
 171         logger.info('[NF terminate] send notify request to nfvo start')
 172         affected_vnfc = []
 173         vnfcs = VNFCInstModel.objects.filter(instid=self.nf_inst_id)
 174         for vnfc in vnfcs:
 175             vm_resource = {}
 176             if vnfc.vmid:
 177                 vm = VmInstModel.objects.filter(vmid=vnfc.vmid)
 178                 if vm:
 179                     vm_resource = {'vimId': vm[0].vimid, 'resourceId': vm[0].resouceid,
 180                                    'resourceName': vm[0].vmname, 'resourceType': 'vm'}
 181             affected_vnfc.append(
 182                 {'vnfcInstanceId': vnfc.vnfcinstanceid,
 183                  'vduId': vnfc.vduid,
 184                  'changeType': 'removed',
 185                  'computeResource': vm_resource})
 186         affected_vl = []
 187         networks = NetworkInstModel.objects.filter(instid=self.nf_inst_id)
 188         for network in networks:
 189             network_resource = {
 190                 'vimId': network.vimid,
 191                 'resourceId': network.resouceid,
 192                 'resourceName': network.name,
 193                 'resourceType': 'network'}
 194             affected_vl.append(
 195                 {'vlInstanceId': network.networkid,
 196                  'vldid': network.nodeId,
 197                  'changeType': 'removed',
 198                  'networkResource': network_resource})
 199         affected_cp = []
 200         ports = PortInstModel.objects.filter(instid=self.nf_inst_id)
 201         for port in ports:
 202             affected_cp.append(
 203                 {'vsInstanceId': port.portid,
 204                  'cpdid': port.nodeId,
 205                  'changeType': 'removed',
 206                  'storageResource': {'vimId': port.vimid, 'resourceId': port.resouceid,
 207                                      'resourceName': port.name, 'resourceType': 'port'}})
 208         affected_vs = []
 209         vss = StorageInstModel.objects.filter(instid=self.nf_inst_id)
 210         for vs in vss:
 211             affected_vs.append(
 212                 {'vsInstanceId': vs.storageid,
 213                  'vsdId': vs.nodeId,
 214                  'changeType': 'removed',
 215                  'storageResource': {'vimId': vs.vimid, 'resourceId': vs.resouceid,
 216                                      'resourceName': vs.name, 'resourceType': 'volume'}})
 217         self.notify_data = {
 218             "status": 'result',
 219             "vnfInstanceId": self.nf_inst_id,
 220             "operation": 'Terminal',
 221             "jobId": self.job_id,
 222             'affectedVnfc': affected_vnfc,
 223             'affectedVirtualLink': affected_vl,
 224             'affectedVirtualStorage': affected_vs,
 225             'affectedCp': affected_cp}
 226
 227         vnfmInfo = NfvoRegInfoModel.objects.filter(nfvoid=self.nf_inst_id)
 228         if len(vnfmInfo) == 0:
 229             raise NFLCMException('nf_inst_id(%s) does not exist in NfvoRegInfoModel' % self.nf_inst_id)
 230         self.notify_data['VNFMID'] = vnfmInfo[0].vnfminstid
 231         logger.info('content_args=%s' % self.notify_data)
 232
 233     def delete_resource(self):
 234         logger.info('rollback resource begin')
 235         adaptor.delete_vim_res(self.inst_resource, self.do_notify_delete)
 236         logger.info('rollback resource complete')
 237
 238     def do_notify_delete(self, res_type, res_id):
 239         logger.error('Deleting [%s] resource:resourceid [%s]' % (res_type, res_id))
 240         if res_type == adaptor.RES_VM:
 241             VmInstModel.objects.filter(instid=self.nf_inst_id, resouceid=res_id).delete()
 242         elif res_type == adaptor.RES_FLAVOR:
 243             FlavourInstModel.objects.filter(instid=self.nf_inst_id, resouceid=res_id).delete()
 244         elif res_type == adaptor.RES_PORT:
 245             PortInstModel.objects.filter(instid=self.nf_inst_id, resouceid=res_id).delete()
 246         elif res_type == adaptor.RES_SUBNET:
 247             SubNetworkInstModel.objects.filter(instid=self.nf_inst_id, resouceid=res_id).delete()
 248         elif res_type == adaptor.RES_NETWORK:
 249             NetworkInstModel.objects.filter(instid=self.nf_inst_id, resouceid=res_id).delete()
 250         elif res_type == adaptor.RES_VOLUME:
 251             StorageInstModel.objects.filter(instid=self.nf_inst_id, resouceid=res_id).delete()
 252
 253     def lcm_notify(self):
 254         NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status='NOT_INSTANTIATED', lastuptime=now_time())
 255         logger.info('[NF termination] send notify request to nfvo end')
 256         resp = notify_lcm_to_nfvo(json.dumps(self.notify_data))
 257         logger.info('[NF termination] get lcm response %s' % resp)
 258         logger.info('[NF termination] send notify request to nfvo end')
 259
 260     def vnf_term_failed_handle(self, error_msg):
 261         logger.error('VNF termination failed, detail message: %s' % error_msg)
 262         NfInstModel.objects.filter(nfinstid=self.nf_inst_id).update(status='failed', lastuptime=now_time())
 263         JobUtil.add_job_status(self.job_id, 255, error_msg)